Zinc electrode and rechargeable zinc-air battery
Patent
·
OSTI ID:867021
An improved zinc electrode is disclosed for a rechargeable zinc-air battery comprising an outer frame and a porous foam electrode support within the frame which is treated prior to the deposition of zinc thereon to inhibit the formation of zinc dendrites on the external surface thereof. The outer frame is provided with passageways for circulating an alkaline electrolyte through the treated zinc-coated porous foam. A novel rechargeable zinc-air battery system is also disclosed which utilizes the improved zinc electrode and further includes an alkaline electrolyte within said battery circulating through the passageways in the zinc electrode and an external electrolyte circulation means which has an electrolyte reservoir external to the battery case including filter means to filter solids out of the electrolyte as it circulates to the external reservoir and pump means for recirculating electrolyte from the external reservoir to the zinc electrode.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
- DOE Contract Number:
- AC03-76SF00098
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4842963
- OSTI ID:
- 867021
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/429/29/
alkaline
alkaline electrolyte
battery
battery comprising
circulates
circulating
circulating electrolyte
circulation
comprising
dendrites
deposition
disclosed
electrode
electrode support
electrolyte
electrolyte circulation
electrolyte reservoir
external
external surface
filter
filter means
foam
foam electrode
formation
frame
improved
improved zinc
including
inhibit
means
novel
outer
outer frame
passageways
porous
porous foam
prior
provided
pump
pump means
rechargeable
rechargeable zinc
rechargeable zinc-air
recirculating
reservoir
solids
support
surface
thereon
treated
treated prior
utilizes
zinc
zinc electrode
zinc-air
zinc-air battery
zinc-coated
alkaline
alkaline electrolyte
battery
battery comprising
circulates
circulating
circulating electrolyte
circulation
comprising
dendrites
deposition
disclosed
electrode
electrode support
electrolyte
electrolyte circulation
electrolyte reservoir
external
external surface
filter
filter means
foam
foam electrode
formation
frame
improved
improved zinc
including
inhibit
means
novel
outer
outer frame
passageways
porous
porous foam
prior
provided
pump
pump means
rechargeable
rechargeable zinc
rechargeable zinc-air
recirculating
reservoir
solids
support
surface
thereon
treated
treated prior
utilizes
zinc
zinc electrode
zinc-air
zinc-air battery
zinc-coated